采矿与安全工程学报
採礦與安全工程學報
채광여안전공정학보
JOURNAL OF MINING AND SAFETY ENGINEERING
2014年
1期
122-126
,共5页
胡青峰%崔希民%康新亮%雷斌%马开锋%李垒成
鬍青峰%崔希民%康新亮%雷斌%馬開鋒%李壘成
호청봉%최희민%강신량%뢰빈%마개봉%리루성
开采沉陷%Knothe时间函数%概率积分求参法
開採沉陷%Knothe時間函數%概率積分求參法
개채침함%Knothe시간함수%개솔적분구삼법
mining subsidence%Knothe time function%probability integral calculate the parameter method
对Knothe时间函数参数的影响进行了分析,在Knothe时间函数未达到收敛以前,对于同一时间点而言,值越小,Knothe时间函数值也越小, c值越大,Knothe时间函数取值也相对越大,特别是在t∈[0,0.2]时,不同的参数对Knothe时间函数值影响较大。根据开采沉陷地表移动变形的一般规律和采空区达到充分采动时的尺寸,建立了一种新的 Knothe 时间函数求参模型--概率积分求参法。通过对比分析平安煤矿、富力煤矿和孙村煤矿的实测c值与采用该模型的计算c值,验证了该模型的正确性;并以29401工作面上方走向观测线的多期实测下沉数据为例,对该模型进行了实例应用,通过对比分析实测数据和预测结果,进一步证实了本文所建立的Knothe时间函数求参模型的实用性和可靠性。
對Knothe時間函數參數的影響進行瞭分析,在Knothe時間函數未達到收斂以前,對于同一時間點而言,值越小,Knothe時間函數值也越小, c值越大,Knothe時間函數取值也相對越大,特彆是在t∈[0,0.2]時,不同的參數對Knothe時間函數值影響較大。根據開採沉陷地錶移動變形的一般規律和採空區達到充分採動時的呎吋,建立瞭一種新的 Knothe 時間函數求參模型--概率積分求參法。通過對比分析平安煤礦、富力煤礦和孫村煤礦的實測c值與採用該模型的計算c值,驗證瞭該模型的正確性;併以29401工作麵上方走嚮觀測線的多期實測下沉數據為例,對該模型進行瞭實例應用,通過對比分析實測數據和預測結果,進一步證實瞭本文所建立的Knothe時間函數求參模型的實用性和可靠性。
대Knothe시간함수삼수적영향진행료분석,재Knothe시간함수미체도수렴이전,대우동일시간점이언,치월소,Knothe시간함수치야월소, c치월대,Knothe시간함수취치야상대월대,특별시재t∈[0,0.2]시,불동적삼수대Knothe시간함수치영향교대。근거개채침함지표이동변형적일반규률화채공구체도충분채동시적척촌,건립료일충신적 Knothe 시간함수구삼모형--개솔적분구삼법。통과대비분석평안매광、부력매광화손촌매광적실측c치여채용해모형적계산c치,험증료해모형적정학성;병이29401공작면상방주향관측선적다기실측하침수거위례,대해모형진행료실례응용,통과대비분석실측수거화예측결과,진일보증실료본문소건립적Knothe시간함수구삼모형적실용성화가고성。
Based on the analysis of the influence of the Knothe time function parameter, This paper puts forward that before the Knothe time function is convergent, for the same point in time, the smaller the value of c becomes, the smaller the Knothe time function value becomes, and vice versa. The influence of the different parameter on the Knothe time function value is very significant, especially when t∈[0,0.2]. According to the general laws of surface subsidence and the size at which the gob reached the full extraction, a new evaluation parameter model of Knothe time function (named the probability integral calculate the parameter method) was established. By comparing the measured c value and the calculated c value of the model of Pingan coal mine, Fuli coal mine and Suncun coal mine, the correctness of the model is verified. By applying the model to several observational subsidence data of the strike line of the 29401 face, and comparing the measured data and predictions, the practicality and reliability of the Knothe time function parameter calculation model is established in this paper.